{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27669",
    "entityType": "User",
    "nonce": "0xffc7bac8b0a783612e9093829fec721b7f1da07a362792b4f5bfa042d5bdaa76",
    "signature": "0xf2d06844770baf666d373bedf1c3a2d78e0b67f50319a9381ac05c87869de18320aca2afaa8eb3a3b6372e87fef08e4823eb8b6a47c1f0fd1de74127667fe30f1b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}